Sorry, I’m having a bit of trouble understanding your question.
To clarify: the number of penetrations is unlimited — you can just start and go with the action at any time. Earlier, I thought you were asking about how many times the player can finish(ejaculations). That is limited by the player’s stamina. We don’t plan to make stamina unlimited, but it restores over time during the session.
Regarding intimate hair: it is purely visual. It does not change the character’s behavior, her attitude, or any gameplay limits. If you want to change the style, you can do so in the wardrobe.
I hope this helps!